C0081
Steering Torque Sensor Malfunction
1997-2003 Audi A8 4.2L V8
High SeverityChassisGeneric (SAE)
Description
The electric power steering torque sensor has detected a general malfunction.
Symptoms
- Power steering warning light
- Heavy or erratic steering
- EPS assist reduced or absent
- Stability control disabled
Common Causes
- Faulty torque sensor in steering column
- Wiring damage
- Connector corrosion
- Steering column impact damage
Diagnostic Steps
- Read torque sensor values at rest (should be near zero)
- Turn wheel and verify smooth sensor response
- Inspect steering column connector
- Check for steering column damage
- Test sensor voltage range
Repair Notes
Replace steering torque sensor assembly. May require steering column replacement on some vehicles.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0081 on Other Vehicles
Common Questions
What does code C0081 mean on a 1997-2003 Audi A8?
C0081 stands for "Steering Torque Sensor Malfunction". The electric power steering torque sensor has detected a general malfunction.
What are the symptoms of C0081 on a Audi A8?
Common symptoms of C0081 include: Power steering warning light, Heavy or erratic steering, EPS assist reduced or absent, Stability control disabled.
What causes C0081 on a 1997-2003 Audi A8?
Common causes of C0081 include: Faulty torque sensor in steering column, Wiring damage, Connector corrosion, Steering column impact damage.